Decay study of neutron-rich zirconium isotopes employing a Penning trap as a spectroscopy tool

被引：0
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作者：
S. Rinta-Antila
T. Eronen
V. -V. Elomaa
U. Hager
J. Hakala
A. Jokinen
P. Karvonen
H. Penttilä
J. Rissanen
T. Sonoda
A. Saastamoinen
J. Äystö
机构：
[1] University of Jyväskylä,Department of Physics
来源：
The European Physical Journal A | 2007年 / 31卷
关键词：
07.75.+h Mass spectrometers; 21.10.Dr Nuclear structure: Binding energies and masses; 27.60.+j 90 ⩽ ; ⩽ 149; 23.40.-s β decay; double β decay; electron and muon capture;
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摘要：
A new technique to produce isobarically pure ion beams for decay spectroscopy by using a gas-filled Penning trap was commissioned at the ion guide isotope separator on-line facility, IGISOL. β-decays of neutron-rich 100Zr, 102Zr and 104Zr isotopes were studied with this technique. In addition, the \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$\ensuremath Q_{\beta^{-}}$\end{document} values of 100,102,104Zr β-decays were determined from the direct mass measurements of zirconium and niobium isotopes performed with a high-precision Penning trap. The mass of 104Nb was directly measured for the first time and the obtained mass excess value for the longer-living (1+) state is -71823±10 keV. For the ground states of 100Nb and 102Nb the obtained mass excess values were -79802±20 keV and -76309±10 keV, respectively. The observed distribution of the β strength supports a prolate deformation assignment for 100,102,104Zr isotopes.
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页数：6
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